I have a 1999 4/4 Zetec and the fuel gauge sender failed. That is also not possible to remove without removing the tank. Again a wooden body beam is in the way. To remove the tank the floorboards have to be removed and they slide forward. Unfortunately they wont slide forward because they foul on the back axle diff case. When I asked Morgan how to go about this, their solution was to put two 18 stone men sat on the back of the car and this pushes the floorboards below the diff, jam the rear suspension in this position with two blocks of wood jammed between the back axle and the chassis and then lift the car and continue to remove the floorboards. I felt that this was far too dangerous to attempt on axle stands. So I took my car to Mulfab. They saw through the floorboards along the edges, parallel to the chassis and refit them using a stainless steel fabricated frame that bolts to the chassis with three bolts either side. From then on removing the tank is simply a matter of removing the six bolts. They will supply the tank support frame through the post if you are up to doing the job but I felt that it was too dangerous for me so I got them to do it. Good Luck. Regards Tony